[Ips-dhfpr] SWS Daily HF Prop Report - 30 May 19 issued 2331 UT on 30 May 2019

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 MAY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 MAY) 
Date   T index  Conditions    
30 May     0    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      1
May      -12
Jun      -12


2. FORECAST (31 MAY - 02 JUNE)
Date   T index  Conditions       MUFs                              
31 May    -7    Normal           Near predicted monthly values/depressed 
                                 10 to 25%
01 Jun    -5    Normal           Near predicted monthly values    
02 Jun    -5    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) ranged mostly from 
near predicted monthly values to moderately enhanced ones for 
Australian regions and Antarctica. Notable periods of degraded 
ionospheric support for Antarctic regions over the UT day. For 
31 May, MUFs are expected to range mostly near predicted monthly 
levels. Mild depressions are also possible as consequence of 
the recent increase in geomagnetic activity. Mostly near predicted 
monthly levels are expected for 1-2 June.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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